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Finding the Fourth Proportional to 325,242.72, 448,781.04 and 191,132.64

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Solution

The fourth proportional to 325,242.72, 448,781.04 and 191,132.64 is: 263,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,242.72 : 448,781.04 = 191,132.64 : x
  2. Step 2: Convert to fraction form
    325,242.72/448,781.04 = 191,132.64/x
  3. Step 3: Cross multiply
    325,242.72x = 448,781.04 × 191,132.64
  4. Step 4: Simplify right side
    325,242.72x = 85,776,704,957.15
  5. Step 5: Solve for x
    x = 85,776,704,957.15/325,242.72
  6. Step 6: Final answer
    x = 263,731.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.